Pulse radar device with phase- or frequency-modulation

Details Pulse radar device with phase- or frequency-modulation Pulse radar device with phase- or frequency-modulation

1970-09-22

1978-08-29

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 9233

Patent

active

041107551

ABSTRACT:
A pulse radar device employs binary coding of the transmitted signal, hard limiting of the received signals and compression of the received signals. During compression the signals which exceed a predetermined threshold value are summed for evaluation. A tapped delay line and selectively located phase reversers at the taps read the received code against the transmitted code. The code may also be synchronously changed at the transmitter and receiver as an additional security measure.

REFERENCES:
patent: 3366955 (1968-01-01), Mattern
patent: 3413635 (1968-11-01), Moore
patent: 3487409 (1969-12-01), Thiele et al.
patent: 3526894 (1970-09-01), Guilhem et al.
patent: 3701154 (1972-10-01), McKinney

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